#include <stdio.h>

void yang(int arr[][4], int n)
{
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j <= i; j++)
		{
			if (i == j || j == 0)
			{
				arr[i][j] = 1;
			}
			else
				arr[i][j] = arr[i - 1][j] + arr[i - 1][j - 1];
		}
	}
}
int main()
{
	int arr[4][4] = { 0 };
	yang(arr, 4);
	for (int i = 0; i < 4; i++)
	{
		for (int j = 0; j <= i; j++)
		{
			printf("%d ", *(*(arr + i) + j));
		}
		printf("\n");
	}
	return 0;
}